Re: [PATCH] sched/deadline: do not try to push tasks if pinned task switches to dl

[Peter Zijlstra]

On Fri, Oct 10, 2014 at 10:43:17AM +0800, Wanpeng Li wrote:
> As Kirill mentioned(https://lkml.org/lkml/2013/1/29/118):
> | If rq has already had 2 or more pushable tasks and we try to add a 
> | pinned task then call of push_rt_task will just waste a time.
> 
> Just switched pinned task is not able to be pushed. If the rq had had
> several dl tasks before they have already been considered as candidates
> to be pushed (or pulled). This patch does the same behavior as rt class 
> which introduced by commit 104479 (sched/rt: Do not try to push tasks 
> if pinned task switches to RT). 

Checkpatch rightly complains:

ERROR: Please use 12 or more chars for the git commit ID like: 'commit 10447917551e ("sched/rt: Do not try to push tasks if pinned task switches to RT")'
#12: 
which introduced by commit 104479 (sched/rt: Do not try to push tasks


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